I always recommend to buy the Flatface nipple with pressure eliminator because it is impossible to connect if there is residual pressure inside, for those used to poppets they use a hammer on the top of the nipple to release the pressure which with time will be rounded and will no longer open the valve when connected.
Hi Leo, There are very small drybreak couplings available, they are called CAT Test Ports, they are quite common on Caterpilar equipment for quickly testing and checking pressures during service and maintanace, but maybe still not quite small enough for bycycles is weight is going to be an issue. How many connections would be required for a bicycle two or would you require more?
@@Hydraulic.Online Hi, Thank you for the reply. Sounds interesting; I'll check them out. A breakaway frame would require one, and the fork, depending on where is internally or externally routed, will require one - or none. 22Bicycles sells couplers ("Brake Break") for ca. $250, and so does JSJ Cycles (unnamed). Indeed, if they were a little smaller and more affordable, they'd be a Godsend for cycle tourists.
Hi Airspool, No I do not recommend using these quick connect couplers for refrigerant applications, the design and seal materials are incorrect for the cold, heat the gas molecule sizes and phases between gas and liquid.
I am guessing that there is very little air introduced to the system with the flat faced coupler? Like so little that it could be used in a race car scenario for quick change brake calipers. Maybe how Porsche changed the entire front brake set caliper and all on a car in under 50 seconds at Le Mans 2018.
Im in pest control and we use the poppet style to a 150 psi sprayer under houses everyday. (Dragged through dirt, slammed on concrete) and it can handle it for a bit but like you said the dirt and grime just kills the o rings. Can you replace them and if not. What would you recommend. Coupling or brands anything lol we need help/an idea because im tapped out.
Danny you can change the O rings and Backing rings on poppet couplers Its a bit fiddly but possible. Get yourself a set of O Ring Picks for about $10, they are hard and sharp so use them carefully so that you do not damage the O Ring groove or put a hole in your fingers. Pull the O ring and Backing Ring out and take them to a bearing Shop they should be able to supply you with new ones for a couple of $. Also you can get Rubber dust caps for the couplings to protect against dust, dirt, and damage. They look like this www.hydraulic.online/search?keyword=dust%20caps
These couplers use tough synthetic O rings some with nylon backing rings, and are quite durable, that being said repeated connections without cleaning and or wiping the dirt or dust off the couplings before connecting will eventually cause leaks on any type of coupler.
I have a Parker 1/2inch flat face coupler. The male nipple has lost a little plating on the working surface, and shows brown steel underneath. It's smooth alright. But I am wondering if it should be replaced now or if the plating doesn't matter much🤔?
Hi Randy just saw your comment tonight sorry for not replying sooner, I am not quite clear what you are asking? Do you need an adaptor of some kind to fit a Bobcat 751 is that correct?
Hello Nailtwister a lot of manufacturers including Cejn will manufacture flat face and poppet couplings to the same ISO specification. This is to ensure interchangeability. For example a 1/2" flat face Cejn Male coupling manufactured to ISO 16028 A specifications will fit and connect leak free to an EngMatTec Female 1/2" Flat face coupling and any other manufacturer that manufactures to the same Specification. Dimensionally they will be the same, that being said there may be differences in the quality of materials used, the Heat treatment and hardening of the metals as well as the electroplating and resistance to corrosion and the elements. We plan to do some long term tests of various coupler manufacturers, so if you have not done so already please like this video and subscribe to this channel. Regards from the team and Hydraulic.online
If you are in the US or Canada and you have a Bobcat or other mobile machinery that uses poppet style couplers get your new or replacement flat face couplings below. valvehalla.com/collections/featured-products/products/1-2-npt-male-female-quick-release-hydraulic-coupler-set
@@plowmaster1206 😏 Plowmaster, If you have trouble disconnecting a flat face coupler you have either done one of three things, 1. Not rotating the outer sleeve to line up the notch with the lock pin, or 2. Given the outer sleeve a good knock, or 3. Dragged them through the dirt. Then again, do any of the above to any Coupling including Pioneer; chances are you will have trouble disconnecting them as well.
Great information. Just what I was looking for. Thanks for posting
thanks for the comments Steven, how are they working out for you?
I always recommend to buy the Flatface nipple with pressure eliminator because it is impossible to connect if there is residual pressure inside, for those used to poppets they use a hammer on the top of the nipple to release the pressure which with time will be rounded and will no longer open the valve when connected.
Try this neat installation to reduce internal built up pressure in your hydraulic System.
ruclips.net/user/shorts_r85JUOlU1s
Very intriguing. I hope, this technology trickles down to bicycles. A godsend for breakaway touring bicycles on flights.
Hi Leo, There are very small drybreak couplings available, they are called CAT Test Ports, they are quite common on Caterpilar equipment for quickly testing and checking pressures during service and maintanace, but maybe still not quite small enough for bycycles is weight is going to be an issue. How many connections would be required for a bicycle two or would you require more?
@@Hydraulic.Online Hi, Thank you for the reply. Sounds interesting; I'll check them out. A breakaway frame would require one, and the fork, depending on where is internally or externally routed, will require one - or none. 22Bicycles sells couplers ("Brake Break") for ca. $250, and so does JSJ Cycles (unnamed). Indeed, if they were a little smaller and more affordable, they'd be a Godsend for cycle tourists.
Very interesting video have these on my Kubota Kx36-3 and am adding a hydraulic thumb , now I know how they work . Many thanks
Thanks for your comments and for watching our video Steve.
sir what to do if the conection between hose and conector leak even ord skru it very tight?
Can either of these be used for refrigerant under pressure?
Hi Airspool, No I do not recommend using these quick connect couplers for refrigerant applications,
the design and seal materials are incorrect for the cold, heat the gas molecule sizes and phases between gas and liquid.
I am guessing that there is very little air introduced to the system with the flat faced coupler? Like so little that it could be used in a race car scenario for quick change brake calipers. Maybe how Porsche changed the entire front brake set caliper and all on a car in under 50 seconds at Le Mans 2018.
Yes makes sense that Porsche probably did use some form of quick-connect disconnect brake hose coupler.
Im in pest control and we use the poppet style to a 150 psi sprayer under houses everyday. (Dragged through dirt, slammed on concrete) and it can handle it for a bit but like you said the dirt and grime just kills the o rings. Can you replace them and if not. What would you recommend. Coupling or brands anything lol we need help/an idea because im tapped out.
Danny you can change the O rings and Backing rings on poppet couplers Its a bit fiddly but possible. Get yourself a set of O Ring Picks for about $10, they are hard and sharp so use them carefully so that you do not damage the O Ring groove or put a hole in your fingers. Pull the O ring and Backing Ring out and take them to a bearing Shop they should be able to supply you with new ones for a couple of $. Also you can get Rubber dust caps for the couplings to protect against dust, dirt, and damage. They look like this www.hydraulic.online/search?keyword=dust%20caps
What about O ring damage when connecting and disconnecting? Do they leak with lots of usage?
These couplers use tough synthetic O rings some with nylon backing rings, and are quite durable, that being said repeated connections without cleaning and or wiping the dirt or dust off the couplings before connecting will eventually cause leaks on any type of coupler.
I have a Parker 1/2inch flat face coupler. The male nipple has lost a little plating on the working surface, and shows brown steel underneath. It's smooth alright. But I am wondering if it should be replaced now or if the plating doesn't matter much🤔?
George as long as the surface remains smooth and rust-free when disconnected it should be fine.
Very well explained! What adapter kit from you guys transfers the flat faced to the pioneer it's the smaller 1/2" I believe Bobcat 751. Thanks
Hi Randy just saw your comment tonight sorry for not replying sooner, I am not quite clear what you are asking? Do you need an adaptor of some kind to fit a Bobcat 751 is that correct?
hi
repair kit for male -female -flat face couplers ?
nope sorry no repair kit for flat face couplers, they are factory sealed units. usually with green permanent locktite
😮 no possible
For one small leack - must trow it?
perfect explanation . thank you
Glad it was helpful!
Can you review a Cejn quick cupeling?
Hello Nailtwister a lot of manufacturers including Cejn will manufacture flat face and poppet couplings to the same ISO specification. This is to ensure interchangeability. For example a 1/2" flat face Cejn Male coupling manufactured to ISO 16028 A specifications will fit and connect leak free to an EngMatTec Female 1/2" Flat face coupling and any other manufacturer that manufactures to the same Specification. Dimensionally they will be the same, that being said there may be differences in the quality of materials used, the Heat treatment and hardening of the metals as well as the electroplating and resistance to corrosion and the elements. We plan to do some long term tests of various coupler manufacturers, so if you have not done so already please like this video and subscribe to this channel.
Regards from the team and Hydraulic.online
Nice!
Thank you Danny ! Cheers! Did the video help you make a decision?
If you are in the US or Canada and you have a Bobcat or other mobile machinery that uses poppet style couplers get your new or replacement flat face couplings below.
valvehalla.com/collections/featured-products/products/1-2-npt-male-female-quick-release-hydraulic-coupler-set
why are flat face couplings in general so much more expensive?
If you are in us and have trouble disconnecting your flat face coupler, convert them to pioneer
@@plowmaster1206 😏 Plowmaster, If you have trouble disconnecting a flat face coupler you have either done one of three things, 1. Not rotating the outer sleeve to line up the notch with the lock pin, or 2. Given the outer sleeve a good knock, or 3. Dragged them through the dirt. Then again, do any of the above to any Coupling including Pioneer; chances are you will have trouble disconnecting them as well.
Nice ❤❤❤❤❤
Thanks 🤗